155406027 has 32 divisors (see below), whose sum is σ = 251500032. Its totient is φ = 83326464.

The previous prime is 155406023. The next prime is 155406067. The reversal of 155406027 is 720604551.

155406027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155406027 - 2² = 155406023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155405985 and 155406003.

It is not an unprimeable number, because it can be changed into a prime (155406023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229213 + ... + 229889.

It is an arithmetic number, because the mean of its divisors is an integer number (7859376).

Almost surely, 2^155406027 is an apocalyptic number.

155406027 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

155406027 is a deficient number, since it is larger than the sum of its proper divisors (96094005).

155406027 is a wasteful number, since it uses less digits than its factorization.

155406027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 155406027 is about 12466.1953698793. The cubic root of 155406027 is about 537.6371693903.

The spelling of 155406027 in words is "one hundred fifty-five million, four hundred six thousand, twenty-seven".